Home / 15,400.80-21,253.13-8,327.24

Finding the Fourth Proportional to 15,400.80, 21,253.13 and 8,327.24

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Solution

The fourth proportional to 15,400.80, 21,253.13 and 8,327.24 is: 11,491.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,400.80 : 21,253.13 = 8,327.24 : x
  2. Step 2: Convert to fraction form
    15,400.80/21,253.13 = 8,327.24/x
  3. Step 3: Cross multiply
    15,400.80x = 21,253.13 × 8,327.24
  4. Step 4: Simplify right side
    15,400.80x = 176,979,766.36
  5. Step 5: Solve for x
    x = 176,979,766.36/15,400.80
  6. Step 6: Final answer
    x = 11,491.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.